Azure Communication Services: German local PSTN numbers unavailable after Pay-As-You-Go upgrade

Naum Kaganovich 0 Reputation points
2026-09-17T22:57:09.6033333+00:00

Hello,

I'm trying to acquire a German local PSTN number for an Azure Communication Services workload.

After moving the Azure subscription from the free trial to Pay-As-You-Go, the subscription is active and billing is working. The Communication Services setup is active and the resource provider is registered.

However, searching for available German local numbers consistently returns an empty result while the request returns HTTP 200. There is no clear error message or indication whether this is due to eligibility, regional availability, account verification, or a separate enablement step.

Could someone clarify:

  1. Which eligibility requirements apply to German local ACS PSTN numbers?
  2. What is the current acquisition path?
  3. Are documents, verification, or enablement steps required before numbers appear?

I already checked the basic configuration and retried after the subscription upgrade. I'm happy to provide non-public details privately if needed.

Thank you.

Azure Communication Services
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  1. kagiyama yutaka 5,490 Reputation points
    2026-09-18T01:33:37.5133333+00:00

    I think germany local PSTN giving 200 and no numbers is the ACS phone‑number API’s published no‑inventory behavior, and when nothing shows up you just use the portal’s special‑order to request the prefix you need.

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  2. AI answer

    2026-09-17T22:57:29.5766667+00:00

    For German local Azure Communication Services PSTN numbers, these are the supported and documented requirements and acquisition steps:

    1. Eligibility requirements
      • A paid Azure subscription is required. Phone numbers cannot be acquired on trial accounts or by Azure free credits.
      • Phone number availability depends on the Azure subscription billing location.
      • For Germany, Local and Toll-Free numbers are eligible on these Azure agreement types: Modern Customer Agreement (Field and Customer Led), Modern Partner Agreement (CSP), Enterprise Agreement, and Pay-As-You-Go.
      • In Germany, Local numbers support Make Calls and Receive Calls as General Availability. Send SMS and Receive SMS are not available for German local numbers.
    2. Current acquisition path
      • In the Azure portal, open the Communication Services resource.
      • In the left menu, select Phone numbers.
      • Select Get to launch the purchase wizard.
      • Choose Germany as the country/region.
      • Select the number type as Local.
      • Search for available numbers.
    3. Special ordering / enablement path
      • Some countries/regions and bulk number orders require a special order process.
      • If special ordering is required, the documented path is:
        1. Select Request a Special Order in the Phone Numbers section.
        2. Open a new case at new case.
        3. Select Azure Communication Service as the customer profile.
        4. Choose the required Country/Region.
        5. Select New TN Acquisition as the case type.
        6. Submit the request with the required details.
    4. About empty search results with HTTP 200
      • The documented material does not list a separate public verification or account-enablement step for Germany beyond subscription eligibility and billing-location eligibility.
      • The documentation does state that for high-volume orders or when the desired phone number is unavailable, further assistance is required through the special-order path.
      • Since the subscription is already Pay-As-You-Go and the resource is active, an empty result can still align with either number unavailability or country/region ordering restrictions that require the special-order flow.
    5. What is documented for Germany specifically
      • Germany has a dedicated phone number management page that confirms availability, eligibility, and restrictions for German numbers.
      • That page documents subscription eligibility and capabilities, but it does not provide an additional public list of mandatory documents or identity-verification steps for German local number acquisition in the retrieved material.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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